Metronidazole (Generic) Tablets, slide 1 of 1

Metronidazole (Generic) Tablets

Prescription Item

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Strength: 250-mg
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Count: 1 tablet

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Metronidazole is an oral medication prescribed for the treatment of various types of infections, including bacterial infections and protozoal infections caused by parasites. Metronidazole may also help treat other inflammations found in the gastric system. This single-ingredient antibiotic comes in a tablet form and is available in two strength options. Customers may receive this drug under the names Flagyl, Metizol, Protostat, Metrogel.


Metronidazole is formulated to help treat susceptible anaerobic bacterial infections, protozoa and other inflammatory conditions in the GI tract. This medication may also help resolve bacterial infections found in the mouth.

Possible Side Effects

The most common side effects include loss of appetite, nausea, and vomiting. Other side effects may include weakness, blood in the urine, diarrhea, stumbling and head tilt. Liver disease is also possible but unlikely. Two serious adverse reactions reported in pets treated with metronidazole have been convulsive seizures and peripheral neuropathy, the latter characterized mainly by numbness or paresthesia of an extremity.

Drug & Food Interactions

Discuss all other medications or supplements your pet is taking with your veterinarian before giving Metronidazole. Interactions are possible with anticoagulants, cimetidine, phenobarbital, phenytoin, and some sedatives/tranquilizers. Other drug interactions may occur.


This medication should not be given to pets who are pregnant or lactating. Pets who are debilitated or who suffer from liver disease should take Metronidazole with extreme caution.

This drug is FDA-approved for human use. However, it is common practice for veterinarians to prescribe such drugs for use in dogs and cats.

NOTE: For Generic Medications, picture displayed may not depict actual product. Generic medications may vary from one order to the next by size, color and shape depending on manufacturer.

  1. Prescribing Information

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  • Item Number
  • Generic Name
  • Common Brand Name(s)
  • For Use With
    Dogs & Cats
  • Administration Form
  • Product Form
  • Health Condition
    Digestive Issues, Inflammatory Bowel Disease
  • Drug Type


Recommended Dosage

Give this medication as directed. Do not stop this medication or change dosage.

Storage Instructions

Store below 86°F.


What is Metronidazole?

This is an oral medication that helps to kill susceptible anaerobic bacteria and protozoa including Giardia. It also acts as an anti-inflammatory in the gastrointestinal (GI) tract so it can be helpful in the treatment of diarrhea as a result of multiple causes.

What are the benefits of Metronidazole?

  • Effective against many cases of diarrhea.
  • Helps with intestinal and periodontal infections plus other susceptible infections.
  • Treats Giardia.

How is this medication given?

Use exactly as directed. Always follow the instructions your veterinarian gives you for your individual pet. If you have questions about how to use Metronidazole correctly, contact your veterinarian.

How does this medication work?

Susceptible anaerobic bacteria and certain protozoa are killed most likely as a result of inhibition of DNA synthesis within the affected organism. Metronidazole also works to reduce inflammation in the GI tract so it can be help in the treatment of diarrhea.

What results can I expect?

Your pets infection or condition should improve when you use Metronidazole as prescribed. Some conditions respond with a short course of treatment. Other more chronic conditions may require several weeks or more before they are resolved. If your pet seems to be worsening or is not improving after all required medication has been given, notify your veterinarian.

Rating: 4.3 of 5 stars 3 Reviews 3 Reviews 4.3 out of 5 Stars

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  • 5 out of 5 stars

    Helped my cat

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    My cat has IBD and this has very much helped him with his bowels and vomiting.

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  • 3 out of 5 stars


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    Can these be purchased in 100mg? My dog needs 25mg a day.

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  • 5 out of 5 stars

    Works like a charm

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    My Collies have sensitive stomachs, which in turn leads to upset intestinal systems on occasion. Metronidazole works like a charm. It usually takes about 12 to 24 hours to kick in. I don't feed my dogs for a day after the onset of the intestinal disorder, but immediately give them this. Then it's chicken, or pumpkin, or turkey and rice for 3-4 days. After 5 days on the medication, I can stop giving it. Don't think the cure is a single dose. I can't live without this. :)

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